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SILOXA-TEK 8500 Natural Finish

An industrial-grade, water-based, silane/siloxane engineered to reduce water and moisture intrusion, while protecting concrete or masonry substrates from chlorides and deicing salts.

$81.95 - $244.95
  • SILOXA-TEK 8500 - $81.95


Siloxa-Tek 8500 is our favorite product to treat nearly any application. A proprietary blend of silane/siloxanes, this clear penetrating sealer not only prevents deicing salt and freeze-thaw damage, but its hydrophobic nature resists moisture intrusion and vapor transmission. This is the go to choice to seal any concrete, brick or masonry based substrate especially driveways, basements, patios and garages.

Coverage: Ready to Use: Up to 250 sq.ft. per coat                                 

                 Ultra Concentrate: Up to 1250 sq.ft per coat

Applications: Driveways/sidewalks, patios, pool decks, garages, chimneys, roof tiles

Substrates: Concrete, concrete blocks/cinderblocks, bricks, pavers, exposed aggregate, stucco, stone, slate, sandstone.


Technical Specs:

  • Feature: Water & salt repellent
  • Chemistry: Silane/Siloxane
  • Color: Clear
  • Finish: Invisible
  • Category: Penetrating
  • Carrier: Water
  • Packaging: 1 Gallon, 1 Gallon Ultra Concentrate
  • Coverage: Ready to Use: Up to 250 sq.ft.per coat, Ultra Concentrate: Up to 1250 sq.ft. per coat
  • Reconstitution Ratio: Ultra concentrate: 1 part sealer : 4 parts water (distilled water is recommended)
  • Interior/Exterior: Interior/Exterior
  • Application Method: Sprayer, Roller, Brush
  • Application Temperature: 40 F - 95 F
  • Number of coats: 2 (wet-on-wet)
  • Time Between Coats: 5 Minutes
  • Drying time (dry to touch): 6 hours
  • Drying time (full cure): 24 Hours
  • Time before/after rain: 48 hours
  • New Concrete: Yes, at least 28 days after being poured
  • Storage/Shelf Life: 1 Year
  • Clean up: Soap/water
  • Paintable: Yes, oil or enamel based paint, first test for compatibility
  • VOC Content: 90 g/L

For complete Siloxa-Tek 8500 application, SDS Sheets, FAQ’s, testing and technical data visit